Sungjae Im, 21, shot a final round four-under 66 to claim his first win on the PGA Tour. The Honda Classic final round leaderboard: (PGA National, Palm Beach, Florida) -6 S Im (Kor); -5 M Hughes (can); -4 T Fleetwood (Eng); -3 B An (Kor), D Berger (USA), B Steele (USA), L Westwood (Eng) Selected others: -1 L Donald (Eng); +1 S Lowry (Ire); +2 Poulter (Eng); +6 T Lewis (Eng) Full Scoreboard
England Fleetwood said he was "upset" to miss a first PGA Tour victory after a one-over par final saw him finish with the Honda Classic in third place .
The leader of the night needed a birdie on the par-five 18 to force a playoff with Sunghae Im but hit his second shot in the water when he closed with a bogey.
"You live or die from the shots you hit," said the world number 12.
South Korean Im, 21, shot a four-under 66 to make a first PGA Tour title to be won at six under, one for Mackenzie Hughes.
Fleetwood, five-time winner on the European Tour, took a one-off lead in the final round at PGA National in Palm Beach, Florida, and extended that advantage with birdies at the opening of two holes.
But in airy circumstances, two fallen shots saw him fall back in part of the lead on the way to the back nine.
A bogey on the 13th then had him catch up as Im produced some fantastic golf. The South Korean birled the 15th and 17th – two of the three holes on the famous Bear Trap of the course – and set the goal of the clubhouse.
Fleetwood had to make the last two holes to catch him and he drew a well for birdie on the 17.
But after a perfect ride past the latter, his hopes disappeared when his five- wood approach shot landed in the water.
"That's golf. Of course I'm frustrated, upset, but I'm fine," he told Sky Sports after a fourth top-three result in his last six tournaments …
"I feel like I'm a pretty consistent player. I got there and had a chance to win. I don't do that as much as I would like, but winning is difficult.
" You have to go on keep going and i'm not getting any worse in golf. I'm getting better. "
Lee Westwood shot a level-par 70 to finish the combined fourth to three under, while fellow Englishman Luke Donald was back two shots after closing with a 72.